Inferred Properties of Earth's Interior

In which area of the Earth's interior is the pressure most likely to be 2.5 million atmospheres?

• asthenosphere

• stiffer mantle

• inner core

• outer core

Tags

NGSS.HS-ESS2-3

Which statement best describes Earth's crust and mantle?

• The crust is thicker and less dense than the mantle.

• The crust is thicker and more dense than the mantle.

• The crust is thinner and less dense than the mantle.

• The crust is thinner and more dense than the mantle.

The actual temperature at the boundary between the stiffer mantle and the outer core is estimated to be approximately

• 1.5° C

• 250º C

• 3000° C

• 5000° C

Tags

NGSS.HS-ESS2-3

Compared to the continental crust, the oceanic crust is

• thicker

• more dense

• more granitic

The thinnest section of Earth's crust is found beneath

• oceans

• desert regions

• coastal plains

• mountain regions

At which depth below Earth's surface is the density most likely 9.5 g/cm³?

• 1,500 km

• 2,000 km

• 3,500 km

• 6,000 km

In which layer of Earth's interior is the inferred temperature 6,000°C?

• crust

• mantle

• outer core

• inner core

The cross section below shows a drill rig used to collect rock samples from below Earth's surface. The rock samples collected from the bottom of the drill hole (2 km deep) came from which Earth layer?

• lithosphere

• hydrosphere

• asthenosphere

• stiffer mantle

Tags

NGSS.MS-ESS2-1

What caused the interior of Earth to separate into layers?

• a decrease in the rate of rotation of Earth

• the gravitational pull on materials of varying densities

• variations in heating by the Sun due to Earth's tilt

• collisions with meteors and comets

The arrows shown in the asthenosphere represent the inferred slow circulation of the plastic mantle by a process called

• insolation

• conduction

• convection

• radiation